My knight disc magnum 26 inch barrel just never has shot tight groups so when i get groups like this without even playing with it i get exciteded . i how these perform well i am switching from 300 sst hornady 's and have had great results i have taken over 10 deer with the sst and they usually bang flop or maybe 10 - 15 yard tracking. but have never grouped better than 2-3 inch 100 yard groups so i hope that the deep curls perform on the game like the sst 's and with the added bonus of being cheaper . I also tried the Hornady fbp 350 's yesterday with dismal accuracy oh well